Textured Asymmetric Membrane Electrode Assemblies of Piezoelectric Phosphorene and Ti_(3)C_(2)T_(x)MXene Heterostructures for Enhanced Electrochemical Stability and Kinetics in LIBs  

作　　者：Yihui Li Juan Xie Ruofei Wang Shugang Min Zewen Xu Yangjian Ding Pengcheng Su Xingmin Zhang Liyu Wei Jing‑Feng Li Zhaoqiang Chu Jingyu Sun Cheng Huang 

机构地区：[1]Volta and DiPole Materials Labs,College of Energy,Soochow Institute for Energy and Materials InnovationS(SIEMIS),Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province,Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry,Soochow University,Suzhou 215006,People’s Republic of China [2]School of Materials Science and Engineering,Jiangsu University,Zhenjiang 212013,People’s Republic of China [3]College of Underwater Acoustic Engineering,Harbin Engineering University,Harbin 150001,People’s Republic of China [4]Shanghai Synchrotron Radiation Facility,Shanghai Advanced Research Institute,Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201204,People’s Republic of China [5]State Key Laboratory of New Ceramics and Fine Processing,School of Materials Science and Engineering,Tsinghua University,Beijing 100084,People’s Republic of China [6]High Density Materials Technology Center for Flexible Hybrid Electronics,Suzhou Institute of Electronic Functional Materials Technology,Suzhou Industrial Technology Research Institute,Suzhou 215151,People’s Republic of China [7]Institute of Advanced Materials and Institute of Membrane Science and Technology,Jiangsu National Synergistic Innovation Center for Advanced Materials,Suzhou Laboratory and Nanjing Tech University,Nanjing 211816,People’s Republic of China

出　　处：《Nano-Micro Letters》2024年第4期394-414,共21页纳微快报（英文版）

基　　金：financially supported by the National Key Research and Development Program of China(No.2017YFB1002900);the National Natural Science Foundation of China(No.51661145021);the Key Natural Science Program of Jiangsu Province(Nos.BE2022118,BE2021643 and BE2016772);the Traction Project of Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province(No.Q816000217);the Scholarship from Key Laboratory of Modern Optical Technologies of Ministry of Education of China;the Priority Academic Program Development(PAPD)of Jiangsu Higher Education Institutions;China Prosperity Green Industry Foundation of Ministry of Industry and Information Technology;supported by the open project of synchrotron radiation characterization of chain oriented/stacked polar topology and energy modulation of supramolecules(No.2100982)。

摘　　要：Black phosphorus with a superior theoretical capacity(2596 mAh g^(-1))and high conductivity is regarded as one of the powerful candidates for lithium-ion battery(LIB)anode materials,whereas the severe volume expansion and sluggish kinetics still impede its applications in LIBs.By contrast,the exfoliated two-dimensional phosphorene owns negligible volume variation,and its intrinsic piezoelectricity is considered to be beneficial to the Li-ion transfer kinetics,while its positive influence has not been discussed yet.Herein,a phosphorene/MXene heterostructure-textured nanopiezocomposite is proposed with even phosphorene distribution and enhanced piezo-electrochemical coupling as an applicable free-standing asymmetric membrane electrode beyond the skin effect for enhanced Li-ion storage.The experimental and simulation analysis reveals that the embedded phosphorene nanosheets not only provide abundant active sites for Li-ions,but also endow the nanocomposite with favorable piezoelectricity,thus promoting the Li-ion transfer kinetics by generating the piezoelectric field serving as an extra accelerator.By waltzing with the MXene framework,the optimized electrode exhibits enhanced kinetics and stability,achieving stable cycling performances for 1,000 cycles at 2 A g^(-1),and delivering a high reversible capacity of 524 m Ah g^(-1)at-20℃,indicating the positive influence of the structural merits of self-assembled nanopiezocomposites on promoting stability and kinetics.

关 键 词：Phosphorene Nanopiezocomposite Piezo-electrochemical coupling Membrane electrode assembly Lithium-ion storage 

分 类 号：TB332[一般工业技术—材料科学与工程] TM912[电气工程—电力电子与电力传动]